12x+y + 8yx? + 4x²y and got
Elinor simplified
4x²y
1 + 2x5 + 3x2 for and answer. Unfortunately, this problem was marked wrong on
her test.
Choose the answer that best describes why she was marked wrong.

If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system? a. there are infinitely many solutions. b. there is no solution. c. there is exactly one solution. d. the lines in a system cannot be parallel.

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.